This morning the truck wouldn't start, so checked the codes with EFILive and got the Anit-theft, BCM mismatch, and class II data link codes.

So I opened the tune and disabled the anti-theft and got it running again.

I would like to have the anit-theft enabled. The question is, what do I have to do so that this doesn't happen again with the anit-theft enabled? If I hadn't been at home with the laptop it would have been a major PITA.

Thanks

Find out why your getting buss codes.. The signals are all sent via the class 2 data lines and need to have communication with all modules needed for that signal to be verified. Possible you have a module itself creating a buss problem (if thats the codes that are being set).